You can change a slide size for all the slides in the presentation, as well as specify which color scheme you want to use.
To access the current presentation settings,
tap the
Settings icon in the right corner of the top toolbar,
tap the arrow next to the
Presentation settings menu item.
Currently, the following presentation settings are available:
Slide size - is used to change the current Slide size. The default slide size is Widescreen (16:9) that can be switched to Standard (4:3).
Color schemes - is used to select the necessary Color scheme. It allows to change the default color palette for slide elements (font, background, autoshapes and charts).